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| // RUN: %clang_analyze_cc1 -std=c++11 -analyzer-checker=debug.ExprInspection %s
void clang_analyzer_eval(bool);
enum class Foo {
Zero
};
bool pr15703(int x) {
return Foo::Zero == (Foo)x; // don't crash
}
void testCasting(int i) {
Foo f = static_cast<Foo>(i);
int j = static_cast<int>(f);
if (i == 0)
{
clang_analyzer_eval(f == Foo::Zero); // expected-warning{{TRUE}}
clang_analyzer_eval(j == 0); // expected-warning{{TRUE}}
}
else
{
clang_analyzer_eval(f == Foo::Zero); // expected-warning{{FALSE}}
clang_analyzer_eval(j == 0); // expected-warning{{FALSE}}
}
}
enum class EnumBool : bool {
F = false,
T = true
};
bool testNoCrashOnSwitchEnumBool(EnumBool E) {
switch (E) {
case EnumBool::F:
return false;
}
return true;
}
bool testNoCrashOnSwitchEnumBoolConstant() {
EnumBool E = EnumBool::F;
switch (E) {
case EnumBool::F:
return false;
}
return true;
}
typedef __INTPTR_TYPE__ intptr_t;
bool testNoCrashOnSwitchEnumBoolConstantCastedFromNullptr() {
EnumBool E = static_cast<EnumBool>((intptr_t)nullptr);
switch (E) {
case EnumBool::F:
return false;
}
return true;
}
bool testNoCrashOnSwitchEnumBoolConstantCastedFromPtr() {
int X;
intptr_t P = (intptr_t)&X;
EnumBool E = static_cast<EnumBool>(P);
switch (E) {
case EnumBool::F:
return false;
}
return true;
}
|